Data Annotation Course

Lesson 1 • Stakeholders and Team Roles

Identifies the people involved in annotation projects and their responsibilities. Prepares learners to collaborate effectively within annotation teams.

Lesson 2 • What Data Annotation Means

Defines annotation and its relationship to supervised learning. Establishes shared vocabulary used throughout the course.

Lesson 3 • Annotation in the ML Workflow

Maps annotation tasks to model training, validation, and testing stages. Shows how label quality directly affects model performance.

Lesson 1 • Ranking and Comparison Tasks

Covers preference ranking and pairwise comparison formats used in RLHF and evaluation projects. Distinguishes these from classification tasks.

Lesson 2 • Text Annotation Task Formats

Covers labelling methods specific to textual data. Provides hands-on familiarity with the most common NLP annotation tasks.

Lesson 3 • Image Annotation Task Formats

Introduces visual labelling techniques used in computer vision projects. Links each technique to the model architecture it supports.

Lesson 4 • Audio and Video Annotation Formats

Explains time-based annotation for speech and motion data. Demonstrates how temporal precision affects downstream model quality.

Lesson 1 • Core Tool Features and Navigation

Walks through the interface elements common across major annotation platforms. Builds speed and accuracy in tool operation.

Lesson 2 • Collaborative Features and Workflows

Covers multi-user features that support team-based annotation projects. Addresses version control and conflict resolution in shared workspaces.

Lesson 3 • Data Import, Export, and Formats

Teaches how to bring data into tools and export labelled outputs correctly. Ensures annotators understand the formats engineers will consume.

Lesson 4 • Configuring Annotation Projects

Explains how project settings are configured before annotation begins. Connects configuration choices to downstream data format requirements.

Lesson 1 • Handling Edge Cases and Exceptions

Provides a systematic approach to data items that fall outside standard rules. Ensures edge cases are resolved without introducing noise.

Lesson 2 • Anatomy of an Annotation Guideline

Breaks down the components of a well-written guideline document. Teaches annotators to locate definitions, rules, and edge-case instructions quickly.

Lesson 3 • Guideline Updates and Versioning

Explains how guidelines evolve during a project and how annotators adapt. Prevents label inconsistency caused by outdated instructions.

Lesson 4 • Interpreting Ambiguous Instructions

Builds strategies for resolving unclear or conflicting guideline language. Reduces inconsistency caused by misinterpretation.

Lesson 1 • Review and Audit Workflows

Describes structured processes for reviewing completed annotation work. Builds skills for both self-review and peer audit.

Lesson 2 • Feedback and Calibration Sessions

Covers how feedback is delivered and used to realign annotator performance. Reduces systematic errors through structured calibration.

Lesson 3 • Inter-Annotator Agreement Metrics

Teaches calculation and interpretation of agreement scores between annotators. Connects agreement levels to dataset reliability.

Lesson 4 • Automated Quality Checks

Introduces rule-based and model-assisted tools that flag potential errors automatically. Complements human review with scalable detection methods.

Lesson 1 • Ethical Responsibilities of Annotators

Frames annotation as a profession with ethical obligations to end users and society. Encourages principled decision-making when guidelines are silent.

Lesson 2 • Privacy Principles in Annotation

Introduces data minimisation, purpose limitation, and confidentiality obligations. Grounds annotators in the ethical handling of personal information.

Lesson 3 • Bias Awareness in Labelling

Examines how annotator bias enters labelled datasets and affects model fairness. Builds habits that reduce subjective influence on labels.

Lesson 4 • Content Safety and Harm Avoidance

Covers annotation tasks related to harmful, toxic, or illegal content moderation. Equips annotators with safe and consistent labelling practices.

Lesson 1 • Reducing Errors Through Process Design

Teaches pre-task checklists and mid-task review habits that catch errors early. Reduces rework by building quality into the annotation process.

Lesson 2 • Setting Up an Efficient Workspace

Covers physical and digital workspace configuration for sustained annotation work. Links ergonomic and technical setup to long-term productivity.

Lesson 3 • Scaling Output Without Losing Quality

Addresses strategies for increasing annotation volume as proficiency grows. Connects speed gains to maintained or improved quality metrics.

Lesson 4 • Time Management for Annotators

Introduces time-boxing, pacing, and break scheduling for annotation tasks. Helps annotators meet deadlines whilst maintaining label quality.

Lesson 1 • Low-Resource and Multilingual Annotation

Addresses annotation challenges for underrepresented languages and scarce data. Builds strategies for maintaining quality with limited reference material.

Lesson 2 • Strategic Thinking in Annotation Projects

Develops a project-level perspective on annotation planning, risk, and trade-offs. Prepares senior annotators and leads to make informed strategic decisions.

Lesson 3 • Contributing to Guideline Development

Teaches experienced annotators how to identify gaps and propose guideline improvements. Elevates annotators from task executors to process contributors.

Lesson 4 • Annotating for RLHF and Model Alignment

Covers the specialised annotation tasks that train reinforcement learning from human feedback systems. Connects annotator judgment to model behaviour and safety.